powershell - 为什么在命令提示符和Powershell的底部有这么多的空格(回车)？

Question

我一直想知道为什么在运行每个应用程序时命令提示符和Powershell都预先装载了这么多回车符。您可以永远滚动(好吧，不是真的，而是几十个，如果不是数百个页面长度的空白空间)。我现在没有Unix机器，但是我很确定Terminal没有该填充。

我试图寻找原因，但是我空着。这并不是一个错误，所以我想没有多少人在寻找答案。

Answer 1

我认为您可能是在按如下所述指代屏幕缓冲区大小:https://mcpmag.com/articles/2013/03/12/powershell-screen-buffer-size.aspx?m=1

本文将对其进行详细说明:

https://msdn.microsoft.com/en-us/library/windows/desktop/ms682088(v=vs.85).aspx

When a screen buffer is created, it contains blanks. Its cursor is visible and positioned at the buffer's origin (0,0), and the window is positioned with its upper left corner at the buffer's origin. The size of the console screen buffer, the window size, the text attributes, and the appearance of the cursor are determined by the user or by the system defaults.

Unix通过回滚缓冲区以略有不同的方式工作，如此处所述: https://unix.stackexchange.com/questions/145050/what-exactly-is-scrollback-and-scrollback-buffer